The headlight assembly of the vehicle is very essential especially when the sun sets and night starts to embrace the skies. It's also the responsibility of every driver to switch this on when driving along a dark road. The Ford F-350 headlight assembly may be heavy-duty, but it's also quite inevitable for it to wear out in due time. If you feel like it's about to give up, but you're unsure, here are some tips to troubleshoot it at home.
The very basic thing to do is to check if the headlights turn on first to confirm if they are working or not. If they refuse to switch on, then there could be a problem with the fuse or the headlight itself. To check, open the fuse panel that's found under the steering column and take out the headlight fuse. If it's blown, then have it replaced with a new one; make sure that it's the same amperage.
Under the hood, you can find the headlight power connector; make sure to unplug this and take out the bulb. If the filament inside the headlight bulb is damaged, have it replaced with a new one.
Another way to find out if your headlight assembly is defective is if it's experiencing a bright-and-dim dilemma. This could mean that you have a problem with the alternator, which is responsible for providing all the power to the parts of the car. If it's broken, it can cause the headlights to flicker, hence causing the bright-and-dim dilemma. You might need to have the alternator inspected or replaced.
This is an uncommon case, but it can possibly be the reason why your headlight assembly ceases to function. Check if there are bite marks on the wirings because the rodents or mice often nibble on the connections and cause the headlights to stop working. If the wirings are broken or worn out, then it's time that you have them replaced to keep the headlight assembly working so that you'll be able to drive safely once the sun sets.